[Qemu-devel] [PATCH 1/8] virtio-gpu/2d: add hardware spec include file

[Gerd Hoffmann <kraxel@redhat.com>]

This patch adds the header file with structs and defines for
the virtio based gpu device.  Covers 2d operations only.

Written by Dave Airlie and Gerd Hoffmann.

Signed-off-by: Dave Airlie <airlied@redhat.com>
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
---
 include/hw/virtio/virtgpu_hw.h | 207 +++++++++++++++++++++++++++++++++++++++++
 1 file changed, 207 insertions(+)
 create mode 100644 include/hw/virtio/virtgpu_hw.h

diff --git a/include/hw/virtio/virtgpu_hw.h b/include/hw/virtio/virtgpu_hw.h
new file mode 100644
index 0000000..b421a4e
--- /dev/null
+++ b/include/hw/virtio/virtgpu_hw.h
@@ -0,0 +1,207 @@
+/*
+ * Virtio GPU Device
+ *
+ * Copyright Red Hat, Inc. 2013-2014
+ *
+ * Authors:
+ *     Dave Airlie <airlied@redhat.com>
+ *     Gerd Hoffmann <kraxel@redhat.com>
+ *
+ * This header is BSD licensed so anyone can use the definitions
+ * to implement compatible drivers/servers:
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. Neither the name of IBM nor the names of its contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
+ * FOR A PARTICULAR PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL IBM OR
+ * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
+ * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+ * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+ * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
+ * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#ifndef VIRTIO_GPU_HW_H
+#define VIRTIO_GPU_HW_H
+
+enum virtio_gpu_ctrl_type {
+    VIRTIO_GPU_UNDEFINED = 0,
+
+    /* 2d commands */
+    VIRTIO_GPU_CMD_GET_DISPLAY_INFO = 0x0100,
+    VIRTIO_GPU_CMD_RESOURCE_CREATE_2D,
+    VIRTIO_GPU_CMD_RESOURCE_UNREF,
+    VIRTIO_GPU_CMD_SET_SCANOUT,
+    VIRTIO_GPU_CMD_RESOURCE_FLUSH,
+    VIRTIO_GPU_CMD_TRANSFER_TO_HOST_2D,
+    VIRTIO_GPU_CMD_RESOURCE_ATTACH_BACKING,
+    VIRTIO_GPU_CMD_RESOURCE_DETACH_BACKING,
+
+    /* cursor commands */
+    VIRTIO_GPU_CMD_UPDATE_CURSOR = 0x0300,
+    VIRTIO_GPU_CMD_MOVE_CURSOR,
+
+    /* success responses */
+    VIRTIO_GPU_RESP_OK_NODATA = 0x1100,
+    VIRTIO_GPU_RESP_OK_DISPLAY_INFO,
+
+    /* error responses */
+    VIRTIO_GPU_RESP_ERR_UNSPEC = 0x1200,
+    VIRTIO_GPU_RESP_ERR_OUT_OF_MEMORY,
+    VIRTIO_GPU_RESP_ERR_INVALID_SCANOUT_ID,
+    VIRTIO_GPU_RESP_ERR_INVALID_RESOURCE_ID,
+    VIRTIO_GPU_RESP_ERR_INVALID_CONTEXT_ID,
+    VIRTIO_GPU_RESP_ERR_INVALID_PARAMETER,
+};
+
+#define VIRTIO_GPU_FLAG_FENCE (1 << 0)
+
+struct virtio_gpu_ctrl_hdr {
+    uint32_t type;
+    uint32_t flags;
+    uint64_t fence_id;
+    uint32_t ctx_id;
+    uint32_t padding;
+};
+
+/* data passed in the cursor vq */
+
+struct virtio_gpu_cursor_pos {
+    uint32_t scanout_id;
+    uint32_t x;
+    uint32_t y;
+    uint32_t padding;
+};
+
+/* VIRTIO_GPU_CMD_UPDATE_CURSOR, VIRTIO_GPU_CMD_MOVE_CURSOR */
+struct virtio_gpu_update_cursor {
+    struct virtio_gpu_ctrl_hdr hdr;
+    struct virtio_gpu_cursor_pos pos;  /* update & move */
+    uint32_t resource_id;           /* update only */
+    uint32_t hot_x;                 /* update only */
+    uint32_t hot_y;                 /* update only */
+    uint32_t padding;
+};
+
+/* data passed in the control vq, 2d related */
+
+/* VIRTIO_GPU_CMD_RESOURCE_UNREF */
+struct virtio_gpu_resource_unref {
+    struct virtio_gpu_ctrl_hdr hdr;
+    uint32_t resource_id;
+    uint32_t padding;
+};
+
+/* VIRTIO_GPU_CMD_RESOURCE_CREATE_2D: create a 2d resource with a format */
+struct virtio_gpu_resource_create_2d {
+    struct virtio_gpu_ctrl_hdr hdr;
+    uint32_t resource_id;
+    uint32_t format;
+    uint32_t width;
+    uint32_t height;
+};
+
+/* VIRTIO_GPU_CMD_SET_SCANOUT */
+struct virtio_gpu_set_scanout {
+    struct virtio_gpu_ctrl_hdr hdr;
+    uint32_t scanout_id;
+    uint32_t resource_id;
+    uint32_t width;
+    uint32_t height;
+    uint32_t x;
+    uint32_t y;
+};
+
+/* VIRTIO_GPU_CMD_RESOURCE_FLUSH */
+struct virtio_gpu_resource_flush {
+    struct virtio_gpu_ctrl_hdr hdr;
+    uint32_t resource_id;
+    uint32_t width;
+    uint32_t height;
+    uint32_t x;
+    uint32_t y;
+    uint32_t padding;
+};
+
+/* VIRTIO_GPU_CMD_TRANSFER_TO_HOST_2D: simple transfer to_host */
+struct virtio_gpu_transfer_to_host_2d {
+    struct virtio_gpu_ctrl_hdr hdr;
+    uint32_t resource_id;
+    uint32_t offset;
+    uint32_t width;
+    uint32_t height;
+    uint32_t x;
+    uint32_t y;
+};
+
+struct virtio_gpu_mem_entry {
+    uint64_t addr;
+    uint32_t length;
+    uint32_t pad;
+};
+
+/* VIRTIO_GPU_CMD_RESOURCE_ATTACH_BACKING */
+struct virtio_gpu_resource_attach_backing {
+    struct virtio_gpu_ctrl_hdr hdr;
+    uint32_t resource_id;
+    uint32_t nr_entries;
+};
+
+/* VIRTIO_GPU_CMD_RESOURCE_DETACH_BACKING */
+struct virtio_gpu_resource_detach_backing {
+    struct virtio_gpu_ctrl_hdr hdr;
+    uint32_t resource_id;
+    uint32_t padding;
+};
+
+/* VIRTIO_GPU_RESP_OK_DISPLAY_INFO */
+#define VIRTIO_GPU_MAX_SCANOUTS 16
+struct virtio_gpu_resp_display_info {
+    struct virtio_gpu_ctrl_hdr hdr;
+    struct virtio_gpu_display_one {
+        uint32_t enabled;
+        uint32_t width;
+        uint32_t height;
+        uint32_t x;
+        uint32_t y;
+        uint32_t flags;
+    } pmodes[VIRTIO_GPU_MAX_SCANOUTS];
+};
+
+#define VIRTIO_GPU_EVENT_DISPLAY (1 << 0)
+
+struct virtio_gpu_config {
+    uint32_t events_read;
+    uint32_t events_clear;
+    uint32_t num_scanouts;
+    uint32_t reserved;
+};
+
+/* simple formats for fbcon/X use */
+enum virtio_gpu_formats {
+    VIRTIO_GPU_FORMAT_B8G8R8A8_UNORM  = 1,
+    VIRTIO_GPU_FORMAT_B8G8R8X8_UNORM  = 2,
+    VIRTIO_GPU_FORMAT_A8R8G8B8_UNORM  = 3,
+    VIRTIO_GPU_FORMAT_X8R8G8B8_UNORM  = 4,
+
+    VIRTIO_GPU_FORMAT_B5G5R5A1_UNORM  = 5,
+    VIRTIO_GPU_FORMAT_B5G6R5_UNORM    = 7,
+
+    VIRTIO_GPU_FORMAT_R8_UNORM        = 64,
+};
+
+#endif
-- 
1.8.3.1